LAFAYETTE - Prosecutors today are expected to present testimony from detectives who investigated the shooting of Liz Marinello more than two years ago and booked her estranged husband Vince Marinello with her murder.

Marinello, 71, could spend the rest of his life in prison if convicted of second-degree murder in the Sept. 1, 2006, death of Liz Marinello. Prosecutors argue Marinello planned the murder well in advance of the ambush outside a Metairie Road office building.

Defense attorneys argue Marinello is innocent and are standing by the alibi he gave the Jefferson Parish Sheriff's Office. No one witnessed Marinello shooting his wife, and the evidence is circumstantial, the defense team says.

When she died, Liz Marinello was seeking to annul their two-year marriage on grounds that Marinello was still married to his previous wife when they wed in October 2004.

Marinello sought a marriage license to wed Liz weeks before he filed for a divorce from his previous wife, according to testimony. On the license application, Marinello claimed he had been divorced since 1982. Yet, that divorce was finalized three days after he and Liz Marinello wed, according to testimony.

Testimony also has shown that up until a week before Liz Marinello's death, Marinello listed his former wife as a beneficiary to the health insurance policy he had through his employer, Entercom, which is the parent corporation to WWL Radio.

Since the first witness testified Tuesday, jurors have seen evidence of Marinello's overlapping marriages and have heard tales of his marital woes. Witnesses have described Marinello's emotional state during that time frame, and how he carved out vacation time from his job as a radio show host that coincided with the homicide.

On Thursday, jurors heard testimony from people who live and work in the Old Metairie neighborhood where Liz Marinello was shot.

These witnesses testified they saw a "scruffy" bicyclist in the area of the shooting, but only one witness testified that man was Marinello. That same witness claimed Marinello had been riding his bike along Metairie Road near the shooting scene every day that week.

Jurors also heard that Marinello purchased bullets the month before the shooting that match those used in the killing. Another witnesses testified that Marinello purchased a fake mustache the week before the murder.

But prosecutors have not yet presented testimony from detectives who investigated the crime. Jurors also have yet to see the so-called murder check list Marinello allegedly drafted in planning the crime. A Jefferson Parish Sheriff's Office detective found the list in Marinello's FEMA trailer in Lakeview.

According to the trial witness list, jurors also may hear from lay witnesses such as WWL Radio host Bob Mitchell.

Judge Conn Regan of the 24th Judicial District Court, who moved the trial to Lafayette because of pretrial publicity in Jefferson Parish, has told the jury he expects the trial to end sometime next week. Jurors are expected to work Saturday, he said.

The prosecutors are Tommy Block, Vince Paciera and Scott Schlegel. The Jefferson Parish district attorney's office has sent a squad of employees to Lafayette for the trial, including an investigator, a victim's advocate and an information technology director.

Marinello's attorneys are Paul Fleming Jr., and Lee Faulkner of the Jefferson Parish Public Defenders Office. Faulkner next month will become a 24th Judicial District Court judge, meaning the Marinello trial is likely his last as a criminal defense attorney.